nixCraft FAQ roundup – Jan / 7 / 2007

Recently updated/posted Linux and UNIX FAQ:

=> Squid content filtering: Block / download of music MP3, mpg, mpeg, exec files

=> Change the From: email address in PHP mail()

=> Squid deny users accessing a website

=> Linux or UNIX change file permissions recursively ( conditional )

=> Mysql remove duplicate data or rows with DISTINCT

=> Linux disable or drop / block ping packets all together

=> Limit the number of Telnet sessions coming from the same remote system

=> Run ASP.Net on a Linux, Solaris UNIX, Mac OS X or FreeBSD

=> Linux passive ftp not working problem and solution

=> Linux or UNIX which groups do I belong to?

=> Linux basic memory test for errors

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CategoryList of Unix and Linux commands
Disk space analyzersdf ncdu pydf
File Managementcat cp mkdir tree
FirewallAlpine Awall CentOS 8 OpenSUSE RHEL 8 Ubuntu 16.04 Ubuntu 18.04 Ubuntu 20.04
Network UtilitiesNetHogs dig host ip nmap
OpenVPNCentOS 7 CentOS 8 Debian 10 Debian 8/9 Ubuntu 18.04 Ubuntu 20.04
Package Managerapk apt
Processes Managementbg chroot cron disown fg jobs killall kill pidof pstree pwdx time
Searchinggrep whereis which
User Informationgroups id lastcomm last lid/libuser-lid logname members users whoami who w
WireGuard VPNAlpine CentOS 8 Debian 10 Firewall Ubuntu 20.04
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